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pbmpscale - enlarge a portable bitmap with edge smoothing
pbmpscale
N [ pbmfile ]
Reads a portable bitmap as input, and outputs
a portable bitmap enlarged N times. Enlargement is done by pixel replication,
with some additional smoothing of corners and edges.
pnmenlarge(1)
,
ppmscale(1)
, pbm(5)
Copyright (C) 1990 by Angus Duggan Copyright
(C) 1989 by Jef Poskanzer.
Permission to use, copy, modify, and distribute
this software and its documentation for any purpose and without fee is
hereby granted, provided that the above copyright notice appear in all
copies and that both that copyright notice and this permission notice appear
in supporting documentation. This software is provided "as is" without
express or implied warranty.
pbmpscale works best for enlargements
of 2. Enlargements greater than 2 should be done by as many enlargements
of 2 as possible, followed by an enlargement by the remaining factor.
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